Calendar



July 21, 1936. M. E. TRDLLEN 2,048,415

CALENDAR Filed April 30, 1934 2 Sheets-Shet l July 21, 1936. M. E.TROLLEN 2,048,415

CALENDAR Y Filed April 50, 1934 2 Sheets-Sheet 2 swam kw Patented July21, 1936 I 1 2,048,415

' UN-IIED oF-Fic Martin E'.-Tr ollen, St. ,Paul} *Minn; assignor to aBrown & Bigelow, a corporationof Minnesota 7 Application A r l-1 1Lr-1wS1iialNo, 72 3 ,213

Mv invention relates .to-a desk ccalendar hav- In the drawings forminpart ofrthi s specifica ing zneans ior readily setting the same toindition:

a it

cate the; .days of :the year, Figure F1 is, a perspective :view of my 1calendar.-

A,,. feature resides in providing a; calenda Fi ure-121s. atplan sectionon-the lined- 2 of lttwhere a unitary ope at e an m is a tured ed tq besupported to a base plate which is se-q Figurefit-is-a section-on;-,thegline 3+3 .0! Figcured within the,outer shell; by the base-plate ure 2;and held in place so that heamitvmay lber am Fi urea is asection on theline 44 of Fig:- ye-IQHLQV; This-provides a structure wherein urei z t loetthetindicating mechanisrn of thecalendanlwhichp; Fi ure; -5ista:tperspective of the tray for holddesignates; theindiciaforthe days ofthe month ing theindicia sheets which indicate the particuinthehumeralsiseasily assembled in; a unit-and lar; month: a p a jcontainedwithinadeeorativecasing or Figureqdist-asection on;the line 6--6 {of Figau ina1 retz-t then-it is a feature to provide a desk calen- Figure 7 is asimilar section, showing the parts dart wherein the outer casing may bemolded into in; aldifierentposition the desined fanciful decorativeshape tov give the Figure-=8 is a perspective detail of the cylinder;same an tiattractiveappearance In; a form, oi-tindieiagaoperating;mechanism removedfrom-tithe casing of thischaractertitis desirable ytoprovide molded casing-, gq an easilyremovable operating unit so that in as- My calendar A is of an;attractive design havsenahling or,=replacing the operating mechanisming,a;-moldedcasing or-housing- B which may be it isunnecessarygtotakethe casing apartt, Thus made; of any material which-is molded, such as Ihayfi-prpvideda casingtmoldediin a s e ce a a lit :orother similarmaterial. The casing to prqvide :the housing for,the;,;unita ry mechaBfl -is;-;mo lded;in; a-singlehpiece having a hollow o f .the indici aofithecalendar together with-t inner chamber I0, with innenrib portionsIlwex- 25 the operatinglevers and, finger plungersg Whichtendingfrom-tthebottom-to the top of the cham- Permit hec an o be q C y; J d=berz lllon either side thereof. A'base portionl2 which are designed withthe unit so that nthey ism-{formed on the; housing B which projectstasmagheEsIip edCint the molded t at ing im h indicated to providea base,for the rectangular lso a ieaturetokprovide unitary pperr upward ;fromthe Jo ase. Thetop of the housing atin inechanismmior -indicating theindieia B iSfirCh8d at J3 which: forms a jcentral panel h fiacrossthetop and from which extends down each de-atsl htlvr ie tnerpanel p rtion 14. On eithemside-pf thecentral panel portionover the,

body portion ofythet housing 3 which'projects 1 top r and'downthe,sidesa marginal corner portion f the cylinders having thevindicia l5is;provided to form thefront sections of the m, s to 0%, while,theadjacentcylinderis; 1'1Ql,1 s i '1 g B p 3; esiwitht h se; eri t dn igiir m to n the-i ont sectionrwindow'ope ng l6 and %53' .iand withblanlqspaces etween eac H are provided so that the numeral indicia01513116 40* sto i a n tzthe ylinsiersxt t treadilv-sett nip ca ndanwhih;indicates,thev particular day-0fsitienttotindicateethe;particular:daye V e mnnt cmay ppear.- Abovethe-windows. 16- Eazchecylinderaisnprovided :lwith'xas toothed esmiirttheamflnt windowtopening "l8 isi formed .capement wheel whichiaadapted to Joe-engaged through 1. 1.1161} d :l f medonmdlvidbyaspring'urged bell crarik-camleverwhich og a! i g t s l ig cliplaye o 's wt p t ular operatesfwith the toothed heel to'holdthe-drum yg u p s tion f -anoth rbyte-s mple, pera i n-M v .t t. t t t t23;:formed 'in; thefront panel I5 of the :housing m p lit e liaturesiare cont ined 1 1 .t eaum t,

W Thetray-22is-formed with a.; decorative head i readily removablmechanism 1 nt th 24 -:with1atl0ngitudinal ridge. 25 projecting alongnetn ecelmoldesirt sineau ,v 1 the top of the same to addxtothedecorativena Ee turesur mar c t n emothe .1than:; ture of the same. 1"mqltetfullygdisclosedir When-flit is desired tochange the monthindicia|9.::ithe..tray 22:.is;engagedwbytthe'head 24 and lifted out of the slot23 and the indicia sheets 25 are set in position to indicate theindiciaI9 facing toward the front, such as March, April, etc., for each monthof the year.

The unitary indicia operating mechanism C is assembled on the base plate26 which is provided with screw slots 21 in the side flanges 28 formedangularly disposed from the sides of the base plate 26. The unit C isheld within the casing B by the screws 29 as indicated in Figures 3 and4. This unitary mechanism C includes a pair of cylinders 30 and 3| whichare freely mounted upon the common shaft 32. The shaft 32 is supportedupon its ends by the standards 33 V ,0 the standard 33 and is urged inone direction by the coil spring 31 as indicated in Figures Gand-B.

The lever 35 is forked on one end to provide the cam operating dogs 38and 39 The free ends of these cam operating dogs are formed to fitbetween the teeth on the toothed wheels 34 as in- 'dicated in thedrawings. Normally the cam dog 38 urged by the coil spring 37 engagesbetween two of the teeth of either of the wheels 34 to hold" thecylinder in a set position. This holds the cylinder to which the wheelis attached in a-set' position. a Y

The lever'35 is formed with an operating end having an upper flange 48and a lower flange 4|. The upper flange 48 is formed with a hole 42extending through the same so as to freely re--' ceive the lower end ofthe operating'rod 43. The

end 44 of the rod 43 rests upon the flange 4|.

Secured to the upper end of the rod 43 I providea fiat operating button45 which has a head portion with a longitudinal projecting ridge similarto the head of the tray 22 to provide a decorative design to theoperating button. For condicia 46 from 1. to 0, while the cylinder 38venience I have numbered the button 45 which operates the lever 35 foroperating the cylinder 3!, and the button 45' operates the cylinder 38.

The cylinder 3| is provided with numeral inis provided with three setsof indicia 41, from (17! 3 77.

dicated through the window ll, when the indicia 43 is operating toindicate the first nine days of the month. Thereafter the indicia 41comes into display through the window l6 by operating the button 45'. r

In manufacturethe casing B is molded in a single integral part o penatthe bottom to receivethe unit mechanism C. The mechanism C is fullyassembled and the rods 43 are set in '5 place in the openings 42 andthen the unit C is slipped up into the opening in the'bottom of the icasing B with the buttons 45 and 45' projecting through the slots 50.The coil springs 31 hold the buttons 45 and 45' with the shoulderportions 7 .5l engaging against the shoulder 52 onthe inside-- of thecasing B. Screws 29 hold the unitary assembled mechanism C in operativeposition in the casing B as illustrated, In operation the desk calenderA rests upon the base I2 and the indicia. I9 is set to indicate Each ofthe cylinders Between the sets of indicia 41- on the cylinder 38 blankspaces 48 are provided so that ,only the indicia on the cylinder 3] willbeinthe month of the year, while the buttons 45 and 45 are operated torotate the cylinders 30 and 3| to indicate the indicia through thewindows l6 and IT. The operation of the rotation of either of thecylinders 30 or 3| is carried out by pressing upon the button 45 whichmoves the lever 35 from the position illustrated in Figure 6 to theposition illustrated in Figure 7. It will be. noted that asthe leveris-operated' in this manner the cam dog end 38 will be released from 10the teeth of the wheel 34 and as the end 38 releases from the teeth 34the end 39 simultaneously begins to engage the teeth of the wheel 34 onthe opposite side with a cam motion in the oscillation ofthe lever 35 byquickly pressing the button 15 45, so that the ends 38 and 39 act aspropelling cams on the teeth of the wheel 34, thereby rotating thecylinder 30 or 3|. Thus the cylinders 30 and 3! are rotated a step at atime by the reciprocating movement of the button 45 or 45. 20

This sets the calender A quickly and easily to indicate the properindicia 46 and 41 through the windows l6 and H to indicate theparticular day of the month. When the button 45 is released,

the dog' 38 urged by the spring 31 holds the cylinder locked againstrotation. This simple operating mechanism permits the calender A to bequickly set at any time. The molded housing B, together with theunitures of my calendar which provide a simple inexpensive structurewhere the parts may be readily replaced or interchanged when it is de'sired. The housing B of the calendar A is of tary operating mechanism Care important feaan attractive design as illustrated. It is ap- 35parent, however, that any suitable design may be employed where thehousing or casing B is hollow andcapable of replaceably supporting theunitary operating mechanism such as C.

In accordance with the patent statutes I have 40' described theprinciples of my calendar and" while the design and structure is of anature such as I have illustrated, I desire to have it understood thatthis is only suggestive and that the 7 samemay be carried out by othermeans and 45 applied to uses other than those above set forth within thescope of the following claims:

I claim:

1. A calendar including, a molded single piece I U 50 casing having abase, an opening formed in the bottom of said casing, a hollow chamberwithin said casing, and a unitary indicia operating mechanism supportedby a base plate withinsaid casing spaced upwardlyfrom said base with theindicia appearing through the face of said casings ss' 2. A calendarcomprising, a molded hollow casing formed in a single piece, indiciawindow openings formed in the front face of said casingthrough which thenumerals indicating the days 5 of the month may be seen, a window formonthly 80 indicia adjacent the day indicia windows, a releaseabletrayfor supporting said monthly in- 1 dicia sheets, a pair of slotsformed in theback of the top of said casing, an'opening in thebot-v m od ng, and unitary indicia mecha- 55 nism for indicating the days of themonth with operating buttons projecting through said slots in the top ofsaid casing, said unitary mechanism having a bottom supporting platewhich is adapted to hold said mechanism within said hollow body of saidcasing.

3. A calendar comprising, an outer molded casing, window openings forindicia to indicate the days of the month, window openings forindicating the month of the year indicia, a tray form-"15 movablysupporting a series of monthly sheets,

a slot in the top of said casing for receiving said tray, a hollow innerchamber formed in said casing, indicia cylinders and supporting baseplate means having a unitary character adapted to be supported in saidhollow chamber, escapement wheels carried by said cylinders, and springurged oscillatable cam dogs adapted to rotate said cylinders to set theindicia to indicate the day of the year through said windows formed insaid casing.

4. A desk calendar having a unitary nature, one unit portion forming theouter casing and molded with a hollow inner chamber, the other portionforming an indicia mechanism including a pair of rotatable cylindershaving numeral indicia on the faces thereof and unitarily supported on abase which secures the unit mechanism within the unit casing, fingerengagement buttons extending out of said casing for operating saidcylinders, toothed wheels secured to said cylinders, and oscillatablespring urged unitary cam dogs operated by said buttons to rotate saidindicia cylinders.

5. A calendar indicia indicating mechanism including, a pair ofrotatable cylinders, toothed Wheels securedto each of said cylinders, acommon shaft for supporting said cylinders freely rotatable thereon, abase for supporting said shaft, a double headed escapement bell crankcam dog for each of said toothed wheels, spring means for holding one ofsaid heads of said cam crank into engagement between the teeth of saidtoothed wheel to hold the indicia cylinder stationary, said cam crankbeing adapted to propell the cylinder when tripped and oscillated intoreleased and engaging position, so that first one and then the other ofsaid cam dog heads engage the toothed wheel.

6. Calendar indicia operating unit mechanism including, a supportingbase, standards extending from said base, a shaft supported by saidstandards, a pair of cylinders mounted freely rotatable upon said shaft,a toothed wheel carried by each of said cylinders, and a spring urgeddouble headed cam driving bell crank including a pair of opposed cams onone end, and an operating arm at the other end adapted to drive thetoothed wheel by an oscillating motion and acting to lock the same in aset position when at rest and means engaging said arm and extend ingfrom said casing.

7. An operating mechanism for a calendar having a unitary natureincluding, a supporting base, a rotatable cylinder, a shaft for freelymounting said cylinder on said base, a toothed locking and rotatingwheel carried by said cylinder, and a double headed cam bell crank leverspring urged, adapted to drive said toothed wheel and cylinder by theoscillation of said lever.

8. A desk calendar including, a molded hollow casing having a supportingbase, a windowed front face to indicate indicia showing the month of theyear and the particular day by numeral indicia, supporting meansslidably held in said casing for holding said month indicia, a unitarydaily numeral indicia removably supported within said casing comprisinga pair of rotatable wheels having the indicia on the peripheral facethereof, and means for operating said wheel a step at a time to set thecalendar to indicate the particular numeral indicia for the particularday to be indicated.

9. A desk calendar including, a unitary housing, a unitary rotatableindicia cylinder means within said housing, button means for operatingsaid indicia cylinder means to set the indicia to indicate by numeralsthe particular day of the month, indicia showing the month of the year,

and means slidably held in said casing for holding said month indicia.

10. A desk calendar including, a unitary outer casing, windows in theface of said casing to in-

